<template>
    <view>
        <!-- 搜索组件 -->
        <view class="search-box">
            <my-search @click="gotoSearch"></my-search>
        </view>
        
        <!-- 轮播图区域 -->
        <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
            <swiper-item v-for="(item,i) in swiperList" :key="i">
                <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
                    <img :src="item.image_src">
                </navigator>
            </swiper-item>
        </swiper>
        
        <!-- 分类导航区域 -->
        <view class="nav-list">
            <view class="nav-item" v-for="(item,i) in navList" :key="i" @click="navClickHandler(item)">
                <image :src="item.image_src" class="nav-img"></image>
            </view>
        </view> 
        
        <!-- 楼层区域 -->
        <view class="floor-list">
            <view class="floor-item" v-for="(item,i) in floorList" :key="i">
                <!-- 楼层标题 -->
                <image :src="item.floor_title.image_src" class="floor-title"></image>
                <!-- 楼层图片区域 -->
                <view class="floor-img-box">
                  <!-- 左侧大图片的盒子 -->
                  <navigator class="left-img-box" :url="item.product_list[0].url">
                    <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
                  </navigator>
                  <!-- 右侧 4 个小图片的盒子     mode="widthFix" 为高度自适应-->
                  <view class="right-img-box">
                      <!-- v-if="i2 !== 0"  保证第一张图片不会被渲染出来 -->
                    <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
                      <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
                    </navigator>
                  </view>
                </view>
            </view>
            
        </view>
    </view>
</template>

<script>
    import badgeMix from '../../mixins/tabbar-badge.js'
    export default {
        mixins:[badgeMix],
        data() {
            return {
                // 轮播图数据
                swiperList:[],
                // 分类导航数据
                navList:[],
                // 楼层数据
                floorList:[]
            };
        },
        onLoad() {
            this.getSwiperList()
            this.getNavList()
            this.getFloorList()
        },
        methods:{
            // 请求轮播图数据
            async getSwiperList(){
                const {data:res} = await uni.$http.get('/api/public/v1/home/swiperdata')
                if(res.meta.status !== 200) return uni.$showMsg()
                this.swiperList = res.message
            },
            // 请求分类导航数据
            async getNavList(){
                const {data : res} = await uni.$http.get('/api/public/v1/home/catitems')
                if(res.meta.status !== 200) return uni.$showMsg()
                this.navList = res.message
            },
            // 请求楼层数据
            async getFloorList(){
                const {data : res} = await uni.$http.get('/api/public/v1/home/floordata')
                if(res.meta.status !== 200) return uni.$showMsg()
                
                // 对数据进行处理
                res.message.forEach(floor => {
                    floor.product_list.forEach(prod => {
                        prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
                    })
                })
                this.floorList = res.message
            },
            navClickHandler(item){
                if(item.name === '分类'){
                    uni.switchTab({
                        url:'/pages/cate/cate'
                    })
                }
            },
            gotoSearch(){
                uni.navigateTo({
                    url:"/subpkg/search/search"
                })
            }
        }
    }
</script>

<style lang="scss">
swiper{
    height: 330rpx;
    .swiper-item,
    image{
        width: 100%;
        height: 100%;
    }
}

.nav-list{
    display: flex;
    justify-content: space-around;
    margin: 15px 0;
    .nav-img{
        width: 128rpx;
        height: 140rpx;
    }
}

.floor-title{
    height: 60rpx;
    width: 100%;
    display: flex;
}
.floor-img-box {
  display: flex;
  padding-left: 10rpx;
}
.right-img-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}
.search-box{
    position: sticky;
    top: 0;
    z-index: 999;
}
</style>
